Glowy eyes of DOOM!
I'm having a little trouble believing that next time you do the run, you'll get the exact same result from using the exact same sequence of moves. Surely the details of your save will be different and cause different things to happen. In fact, didn't you say that if you save an unrelated game in a different slot, then the random events will change in the other slots? If so, my advice would be to do that whenever luck doesn't go your way, rather than fudging with the in-game details. I frequently did that for FF5.